signal loss on one of 2 receivers help needed

[calkett]

I have dish network with a 311 and a 322 receiver with dish pro plus lnb the 322 receiver works fine but for past week 311 looses signal for a period of time then will come back on. no new wiring or splitters, do you think bad lnb? any sugestions (wiring has been in place several years).

 

[boba]

Look for a bad cable/corrosion or a failing receiver. The same LNB feeds both receivers.